Beckhoff EL6731 Documentation page 132

Parameterization and commissioning
ADS read response parameter
Destination-Net-ID (NETID)
Destination-Port (PORT)
Invoke-ID (INVOKEID)
Result (RESULT)
Length (LENGTH)
Data (DATAADDR)
MSAC-C1 Write
A DPV1-MSAC_C1 write indication is represented in an ADS write indication as follows:
ADS write indication parameter
Source-Net-ID (NETID)
Source-Port (PORT)
Invoke-ID (INVOKEID)
IndexGroup (IDXGRP)
IndexOffset (IDXOFFS)
Length (LENGTH)
Data (DATAADDR)
An ADS read response is represented in a DPV1-MSAC_C1 read response as follows:
ADS read response parameter
Destination-Net-ID (NETID)
Destination-Port (PORT)
Invoke-ID (INVOKEID)
Result (RESULT)
Length (LENGTH)
ADS Interface
Communication can also take place via ADS in TwinCAT systems. The functionality is extremely similar to
that of an ADS connection between two PCs over Ethernet, although transmission takes place over
PROFIBUS, with the exception that the requester that initiates the ADS job is always the DP master PC. An
EL6731 DP master is then linked to an EL6731-DP slave.
In the DP master, the ADS Interface should be activated on the "ADS" tab of the box, and the Net-ID of the
DP slave PC is to be entered:
132
Meaning
Net-ID of the slave (see the device's ADS [} 92] tab)
0x200
A unique number, as under indication
Result of the read: 0 = no error, otherwise: bits 0-15 =
standard ADS error codes, bits 16-23 = Error_Code_1,
bits 24-31 = Error_Code_2, see description of the DPV1
error codes [} 126]
Length of the data that has been read
read data
Meaning
Net-ID of the slave (see the device's ADS [} 92] tab)
0x200
A unique number that must reappear in the response
Slot number (DPV1 parameter)
Index (DPV1 parameter)
Length of the data that is to be written
data that is to be written
Meaning
Net-ID of the slave (see the device's ADS [} 92] tab)
0x200
A unique number, as under indication
Result of the read: 0 = no error, otherwise: bits 0-15 =
standard ADS error code, bits 16-23 = Error_Code_1, bits
24-31 = Error_Code_2, see description of the DPV1 error
codes [} 126]
Length of the data that has been read
Version: 2.8 EL6731